Find the direction angles of each vector. Round to the nearest degree, if necessary.v = i - j - 2k
A. ? = 80°, ? = 100°, ? = 109°
B. ? = 69°, ? = 111°, ? = 135°
C. ? = 63°, ? = 117°, ? = 154°
D. ? = 66°, ? = 114°, ? = 145°
Answer: D
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Graph the system of linear inequalities and indicate the solution set.4x + y ? 3x - y ? 3 
A. 
B. 
C. 
D. 
Determine whether the number is prime, composite, or neither.36
A. Neither B. Prime C. Composite
Use the double-declining-balance method of depreciation. Round to the nearest dollar.Beta Graphics buys some CAD-CAM computer equipment at a cost of $8350 and estimates the life at 10 years with a scrap value of $835. What is its book value at the end of the fourth year?
A. $3078 B. $5344 C. $3420 D. $835
The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
?
What will be an ideal response?